We've starting using checksum in civimail for membership renewals. The checksum link takes the user to a webform in which they can renew.

When they do renew the membership is being recorded as a new membership wiping out the member since date.

For example, one person has been a member since 2010. Now it reads 2016.

Anyone know why this is happening.

Thanks, Andy CIVICRM 4.5.8 Drupal 7 We've updated webforms and webforms-civicrm to latest version

  • might need to add what version of wf and wf-civi you are on
    – petednz - fuzion
    Oct 11, 2016 at 15:14
  • thanks, we're using the latest version of those two modules
    – A Davidson
    Oct 12, 2016 at 8:10

1 Answer 1


I think this is nothing to do with the checksum (other than that causes the right contact to load) but is an issue with webform-civicrm overwriting existing info in the membership table.

Pretty sure this is an issue with the webform_civicrm code. Have raised here

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